樸素和半樸素貝葉斯

時間 2020-12-30

原文原文鏈接

引入貝葉斯決策論是概率框架下實施決策的基本方法，它基於概率和誤判誤差的最小化來進行判別，是一種分類問題的解法。原理首先，將數據及其屬性記爲x，對於多分類任務，其可能的取值有N種，設爲{ c1,c2,c3.....cN c 1 , c 2 , c 3 . . . . . c N }，統稱爲c。數據x的正確分類記爲 cx c x 。於是將算法的正確率記爲： Ptrue=∑P(cx|x)=P(

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1. 樸素貝葉斯
2. 樸素貝葉斯爲何樸素？
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